Revert "intelli_plug: code review clean up"

This reverts commit 3cfa93fca7d2e9de9f2776aa7c82e84f7c1f508a.
Revert "mm: vmscan: If kswapd has been running too long, allow it to sleep"

This reverts commit f43126f27a0530e30620cd459c85013eb0d63f91.